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| Experimental Study on Pressure Leaching of Yuanjiang Laterite-nickel Ore |
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Received:February 10, 2012
Revised:February 15, 2012
Accepted:February 16, 2012
Published Online:August 20, 2012
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| DOI：doi：10.3969/j.issn.1007-7545.2012.09.003 |
| KeyWord:laterite-nickel ore; ferruginous minerals; magnesium minerals; pressure leaching |
| Author | Institution |
| SU Rui-Chun |
云南锡业有限责任公司研究设计院 |
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| Abstract: |
| Pressure leaching experiments were conducted on ferruginous and magnesium laterite-nickel ore. The effects of leaching temperature, time and initial acidity on nickel leaching rate and acidic consumption were investigated in detail. The results show that the nickel leaching rates of ferruginous minerals and magnesium minerals are over 90% and 80% respectively. The acidic consumptions of per ton nickel of ferruginous minerals and magnesium minerals are 45 t and 70 t respectively. Nickel leaching rate can reach 88% or higher and acidic consumption of per ton nickel is about 50 t with application of two-stage pressure leaching process. |
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